Mechanics of Old Faithful Geyser, Calistoga, CA

Geophysical Research Letters
By: , and 

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Abstract

In order to probe the subsurface dynamics associated with geyser eruptions, we measured ground deformation at Old Faithful Geyser of Calistoga, CA. We present a physical model in which recharge during the period preceding an eruption is driven by pressure differences relative to the aquifer supplying the geyser. The model predicts that pressure and ground deformation are characterized by an exponential function of time, consistent with our observations. The geyser's conduit is connected to a reservoir at a depth of at least 42 m, and pressure changes in the reservoir can produce the observed ground deformations through either a poroelastic or elastic mechanical model.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Mechanics of Old Faithful Geyser, Calistoga, CA
Series title Geophysical Research Letters
DOI 10.1029/2012GL054012
Volume 39
Issue 24
Year Published 2012
Language English
Publisher American Geophysical Union
Contributing office(s) Branch of Regional Research-Western Region, Volcano Hazards Program
Description 5 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Geophysical Research Letters
Country United States
State California
City Calistoga